Funded in partnership with Miami Dolphins Foundation
Cancer immunotherapy has been one of the great advances in the treatment of cancer in the past decade. In B-cell cancers, hijacking T-cells by insbertion of a synthetic receptor (CAR-T cells) enables these cells to recognize and kill lymphoma through a specific marker (CD19). However, despite CAR-T leading to high rates of remission, only about 40% of patients are cured. Some major causes for why CAR-T does not work in patients is too great a burden of tumor cells and the cancer learning to hide the target the CAR-T needs to be effective. Therefore, there is great interest in combining CAR-T with other cancer therapies to improve efficacy. We have a clinical trial combining 2 drugs, mosunetuzumab and polatuzumab, targeting other lymphoma markers (CD20 and CD79b), together with CAR-T in patients with aggressive B-cell lymphomas. Using this approach, we hope to improve outcomes by addressing the main reasons for CAR-T failure. In this grant, we will track a patient’s response to treatment by monitoring a patient’s blood for small tumor fragments, to allow us to determine when extra therapy is needed in addition to CAR-T. We will precisely measure the amount of target markers on lymphoma cells to assess its importance for success of this therapy. Lastly, as CAR-T therapy has a high risk of infection, we will monitor recovery of the immune system to learn how adding extra therapies may affect a patient’s risk.
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